4x^2-17x+9=0

Simple and best practice solution for 4x^2-17x+9=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4x^2-17x+9=0 equation:


Simplifying
4x2 + -17x + 9 = 0

Reorder the terms:
9 + -17x + 4x2 = 0

Solving
9 + -17x + 4x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
2.25 + -4.25x + x2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + -4.25x + -2.25 + x2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + -4.25x + x2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -4.25x + x2 = 0 + -2.25
-4.25x + x2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
-4.25x + x2 = -2.25

The x term is -4.25x.  Take half its coefficient (-2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
-4.25x + 4.515625 + x2 = -2.25 + 4.515625

Reorder the terms:
4.515625 + -4.25x + x2 = -2.25 + 4.515625

Combine like terms: -2.25 + 4.515625 = 2.265625
4.515625 + -4.25x + x2 = 2.265625

Factor a perfect square on the left side:
(x + -2.125)(x + -2.125) = 2.265625

Calculate the square root of the right side: 1.505199322

Break this problem into two subproblems by setting 
(x + -2.125) equal to 1.505199322 and -1.505199322.

Subproblem 1

x + -2.125 = 1.505199322 Simplifying x + -2.125 = 1.505199322 Reorder the terms: -2.125 + x = 1.505199322 Solving -2.125 + x = 1.505199322 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = 1.505199322 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 1.505199322 + 2.125 x = 1.505199322 + 2.125 Combine like terms: 1.505199322 + 2.125 = 3.630199322 x = 3.630199322 Simplifying x = 3.630199322

Subproblem 2

x + -2.125 = -1.505199322 Simplifying x + -2.125 = -1.505199322 Reorder the terms: -2.125 + x = -1.505199322 Solving -2.125 + x = -1.505199322 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = -1.505199322 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -1.505199322 + 2.125 x = -1.505199322 + 2.125 Combine like terms: -1.505199322 + 2.125 = 0.619800678 x = 0.619800678 Simplifying x = 0.619800678

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.630199322, 0.619800678}

See similar equations:

| -20=5x+30 | | 23-5x=3-x | | 1+12x=56+8 | | -6x^2+11x+4=o | | 12-7x=38-21x | | 6-5w+2w=-27 | | -29+-4x=6-9x | | -29-4x=3x+13 | | 4(7+x)=5(x+2) | | 7x-32=7x+3 | | 2(x+1)=11x | | 2(x+1)=11a | | 8x-15x=7 | | 5x+23=2x+12 | | 6p+21=2p+10 | | 3+10a=2a-33 | | 5a-22=2a+2 | | 3x+3y=105 | | (x+2)2=16 | | 5(3x+5)-4(2x-3)=5x+3(2x-12)+1 | | 4x+x=132 | | 1800X=0 | | 12X-4=0 | | 4(x-2)+3(3-x)=2 | | 7x+5=6x+25 | | 29X+12-2X=3 | | 3(2x+4)=3x+9 | | 4(x+1)+2(x-3)=3(x-2)+3(x+5) | | Axb= | | 4(18-5x)-12(3x-7)=15(2x-16)-6(x+14) | | x^2+x-1040=0 | | 25-73x+26+39x=x+97-81x+41+17x |

Equations solver categories